精品视频一区二区三区四区,97国产色,国产深夜视频,午夜男人网站,成人99视频,成人1区2区3区,91精品国产成人观看

Xinhua photos of the day

Source: Xinhua| 2019-05-31 15:57:49|Editor: Wu Qin
Video PlayerClose
XINHUA PHOTOS OF THE DAY?

Researchers conduct vertical trawling operation on China's research vessel KEXUE (Science) in the western Pacific Ocean, May 29, 2019. KEXUE is carrying out a 20-day long investigation over a series of seamounts in the south of the Mariana Trench in the western Pacific Ocean. They will focus on biological diversities, ecological systems and biological distributions of the seamounts that they planned to explore. (Xinhua/Zhang Xudong)

|<<   Prev 11 12 13 14 15 16 Next  

KEY WORDS:
EXPLORE XINHUANET
010020070750000000000000011100001381061251